SIMULATION OF GAS-LIQUID REACTORS WITH FAST CHEMICAL-REACTIONS

A general model of simple chemisorption is developed. The model descri bes not only the limiting cases of fast and slow chemical reactions (a s compared to characteristic diffusion times), but also the intermedia te regime, in which the characteristic diffusion time for a passing re actant is comparable with the characteristic reaction time. Asymptotic relations for calculating the thickness of a reactive diffusion bound ary layer are derived. Anew algorithm for matching the microkinetic an d macrokinetic models of gas-liquid reactors is proposed.